The searches available from here are similar to the ones for north-west Europe. There are fewer sites than in Europe.
|Sites||The search forms available from this page will allow searches of the database on all sites in central Mexico with tephra layers. Sites are available for tephra layers found in the Basin of Mexico, the Toluca Basin and Michoacán.|
|Geochemical||Two types of query are available from here. The first one produces geochemical data tables of tephra layers at various geographical scales in Iceland and north-west Europe and the second allows tephra layers with certain geochemical characteristics to be found (two searches available).|